Fate and sublethal effects of isoproturon on mature earthworm (Lumbricus terrestris L.).
Meded Rijksuniv Gent Fak Landbouwkd Toegep Biol Wet
; 67(2): 69-77, 2002.
Article
em En
| MEDLINE
| ID: mdl-12701407
ABSTRACT
This study was conducted to investigate the effects of isoproturon in mature earthworm (Lumbricus terrestris L.) under laboratory condition. Earthworms were exposed to soils contaminated with different concentrations for various duration. Residues were monitored in soil and earthworms after 7, 15, 30, 45, and 60 days of exposure to different isoproturon concentrations. Acute toxicity of isoproturon was determined together with growth rate and total soluble protein content of worms. These parameters were related to isoproturon concentration in soil and earthworms. No lethal effect of isoproturon was observed even at the highest concentration tested (1.4 g/kg soil) after 60 days after treatment. Residues of isoproturon have caused a significant reduction of the growth rate. Additionally a reduction of total soluble protein was observed in all treated worms. Decrease of isoproturon concentration in soil was slow and depended on herbicide initial concentration. In the worms, it increased during the first 15 days and decreased thereafter. This study is suggesting the use of the growth rate of earthworms as biomarker of exposure to isoproturon.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oligoquetos
/
Compostos de Fenilureia
/
Herbicidas
/
Compostos de Metilureia
Limite:
Animals
Idioma:
En
Revista:
Meded Rijksuniv Gent Fak Landbouwkd Toegep Biol Wet
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
França